重金属含有物の重金属処理方法及び重金属処理剤
- 专利权人:
- 发明人:
- 申请号：
- JP20110181620
- 公开号：
- JP5790307(B2)
- 申请日:
- 2011.08.23
- 申请国别(地区):
- 日本
- 年份:
- 2015
- 代理人:
- 摘要：
PROBLEM TO BE SOLVED: To solve such problems that a heavy metal treatment agent except lead elutes, or the use amount of the treatment agent increases in the heavy metal-insolubilizing treatment of heavy metal-containing materials, particularly in the presence of organic acids.
SOLUTION: The elution of not only a particularly harmful lead but also other heavy metals such as zinc can be suppressed low even in the coexistence with organic acids and the like by adding a small amount of secondary amine carbodithioate, alkali metal hydroxide and/or alkali earth metal hydroxide to the heavy metal-containing material, and controlling the P alkalinity of the material to be (200 g-CaCO
3 /kg-heavy metal-containing material) or more.COPYRIGHT: (C)2013,JPO&INPIT
- 来源网站：
- 中国工程科技知识中心
